/*!	 noise.h
**	 Header file for implementation of the "Noise Gradient" layer
**
**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
**	Copyright (c) 2007 Chris Moore
**	Copyright (c) 2012-2013 Carlos López
**
**	This package is free software; you can redistribute it and/or
**	modify it under the terms of the GNU General Public License as
**	published by the Free Software Foundation; either version 2 of
**	the License, or (at your option) any later version.
**
**	This package is distributed in the hope that it will be useful,
**	but WITHOUT ANY WARRANTY; without even the implied warranty of
**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
**	General Public License for more details.
**
*/

#ifndef __SYNFIG_NOISE_H
#define __SYNFIG_NOISE_H

#include <synfig/vector.h>
#include <synfig/valuenode.h>

#include <synfig/layers/layer_composite.h>
#include <synfig/gradient.h>
#include <synfig/time.h>
#include "random_noise.h"

class Noise : public synfig::Layer_Composite, public synfig::Layer_NoDeform
{
    SYNFIG_LAYER_MODULE_EXT

private:
    // Parameter: (Gradient)
    synfig::ValueBase param_gradient;
    // Parameter: (RandomNoise)
    synfig::ValueBase param_random;
    // Parameter: (synfig::Vector)
    synfig::ValueBase param_size;
    // Parameter: (RandomNoise::SmoothType)
    synfig::ValueBase param_smooth;
    // Parameter: (int)
    synfig::ValueBase param_detail;
    // Parameter: (synfig::Real)
    synfig::ValueBase param_speed;
    // Parameter: (bool)
    synfig::ValueBase param_turbulent;
    // Parameter: (bool)
    synfig::ValueBase param_do_alpha;
    // Parameter: (bool)
    synfig::ValueBase param_super_sample;

    synfig::Color color_func(const synfig::Point &x, float supersample, synfig::Context context)const;

    float calc_supersample(const synfig::Point &x, float pw, float ph)const;

public:
    Noise();

    virtual bool set_param(const synfig::String &param, const synfig::ValueBase &value);
    virtual synfig::ValueBase get_param(const synfig::String &param)const;
    virtual synfig::Color get_color(synfig::Context context, const synfig::Point &pos)const;
    virtual synfig::CairoColor get_cairocolor(synfig::Context context, const synfig::Point &pos)const;
    virtual bool accelerated_render(synfig::Context context, synfig::Surface *surface, int quality, const synfig::RendDesc &renddesc, synfig::ProgressCallback *cb)const;
    synfig::Layer::Handle hit_check(synfig::Context context, const synfig::Point &point)const;
    virtual Vocab get_param_vocab()const;
};

#endif